Vacuum defrost upgrade for billet control or rotary controls. This is the easiest way to upgrade an heat and A/C system to defrost that uses vacuum controls. The defrost “Y” adapter will allow you to hook up a 2-1/2″ duct hose at one end and use two 2″ duct hose outlets to connect to the defrost outlets on your vehicles dashboard. If you have a single outlet defrost “Y” already installed in the vehicle we can make this setup with two single hose adapters to use with the stock setup.
We designed this adapter to use with our ID-220 and ID-255 evaporators. The adapter works with our billet control setup and includes all the necessary parts.
The adapter measures: 8″ wide x 4-1/2″ tall x 3-1/8″ deep (front to back) Please allow more room for duct hose hookup.